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JPS57122675A - Short-circuit detection of gate turn-off thyristor inverter - Google Patents

Short-circuit detection of gate turn-off thyristor inverter

Info

Publication number
JPS57122675A
JPS57122675A JP56007851A JP785181A JPS57122675A JP S57122675 A JPS57122675 A JP S57122675A JP 56007851 A JP56007851 A JP 56007851A JP 785181 A JP785181 A JP 785181A JP S57122675 A JPS57122675 A JP S57122675A
Authority
JP
Japan
Prior art keywords
current
capacitor
limiting reactor
inverter
short
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56007851A
Other languages
Japanese (ja)
Other versions
JPS6327950B2 (en
Inventor
Takuji Matsumura
Hiroshi Fukui
Yasuo Matsuda
Hisao Amano
Kazuo Honda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56007851A priority Critical patent/JPS57122675A/en
Publication of JPS57122675A publication Critical patent/JPS57122675A/en
Publication of JPS6327950B2 publication Critical patent/JPS6327950B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/521—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To shorten the period of a false short-circuit under the normal operation by a method wherein a pulse current supplying circuit composed of a capacitor or a capacitor and a resistor connected in series is connected to a current-limiting reactor in parallel or between a positive and a negative terminals of an inverter which are connected to the DC main source via the current- limiting reactor. CONSTITUTION:The commercial three-phase AC voltage 1 is received and the ripple current, which is obtained by rectification by a rectifier 2 and smoothed by a smoothing capacitor 3 and a smoothing reactor 13, is applied to a GTO inverter via a current limiting reactor 4. A current circulation diode 5 is connected to the current limiting reactor 4 in parallel and suppresses the transient voltage under the normal operation and performs the regenerative operation. A circuit 19 which supplies the high frequency current is composed of a capacitor 16 or a capacitor 16 and a resistor 15 and connected between a positive and a negative DC input terminals of the GTO inverter.
JP56007851A 1981-01-23 1981-01-23 Short-circuit detection of gate turn-off thyristor inverter Granted JPS57122675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56007851A JPS57122675A (en) 1981-01-23 1981-01-23 Short-circuit detection of gate turn-off thyristor inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56007851A JPS57122675A (en) 1981-01-23 1981-01-23 Short-circuit detection of gate turn-off thyristor inverter

Publications (2)

Publication Number Publication Date
JPS57122675A true JPS57122675A (en) 1982-07-30
JPS6327950B2 JPS6327950B2 (en) 1988-06-06

Family

ID=11677122

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56007851A Granted JPS57122675A (en) 1981-01-23 1981-01-23 Short-circuit detection of gate turn-off thyristor inverter

Country Status (1)

Country Link
JP (1) JPS57122675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147780A (en) * 1984-12-19 1986-07-05 Hitachi Seiko Ltd Inverter control power source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147780A (en) * 1984-12-19 1986-07-05 Hitachi Seiko Ltd Inverter control power source

Also Published As

Publication number Publication date
JPS6327950B2 (en) 1988-06-06

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